光电管,光电元件

light cell的用法和样例:

例句

  1. The photoelectric cell controls a servomotor.该光电管控制着一个伺服电动机。

Lesson 6 Red light runners Text: The San Francisco department of traffic is installing cameras at street intersections. The cameras take pictures of cars running red lights. Each camera captures eighty to one hundred cars running red lights a day. Ru

发表于:2018-11-27 / 阅读(962) / 评论(0) 分类 赖世雄学英语第二册

By Caty Weaver Broadcast: July 25, 2003 This is Bill White with the VOA Special English Environment Report. Researchers say they have found a way to reduce the cost of some 1)fuel cell production. The

发表于:2018-12-01 / 阅读(149) / 评论(0) 分类 VOA2003(下)-环境与健康

Bacteria Discovered To Recharge Cell Phone A microbe called Rhodoferax Ferrireducens,found in the mud at Oyster Bay,Virginia,has been discovered to transfer electrons directly onto an electrode

发表于:2018-12-18 / 阅读(105) / 评论(0) 分类 有声杂志阅读

For something that could revolutionize the world, its come along very slowly. The fuel cell was invented in 1839, but there was little development until the 1950s when NASA started to use them in space where they are still used today. Now, after yea

发表于:2018-12-30 / 阅读(130) / 评论(0) 分类 国家地理2008年

After hundreds of years, the most common, basic microscopes still operate by means of the same old hardware: the lens. But what if you could do away with that lens and create a microscope that fits on a cell phone? Thats what researchers led by Aydog

发表于:2019-01-02 / 阅读(77) / 评论(0) 分类 60秒科学

The big dream for neuroscientists is to be able to watch our brain cells in action, in real time. Well, new research has maybe found the most promising tool yeta technique to watch individual neurons light up in response to a stimulus, like flipping

发表于:2019-01-02 / 阅读(153) / 评论(0) 分类 60秒科学

This is Scientific American's 60-Second Science, I am Cynthia Graber. This'll just take a minute. Imagine tweezers so fine that you could reach right into a cell and manipulate individual molecules. MIT researchers have created such a tweezer, using

发表于:2019-01-08 / 阅读(90) / 评论(0) 分类 Scientific American(七)月

After hundreds of years, the most common, basic microscopes still operate by means of the same old hardware: the lens. But what if you could do away with that lens and create a microscope that fits on a cell phone? Thats what researchers led by Aydog

发表于:2019-01-08 / 阅读(116) / 评论(0) 分类 Scientific American(六)月

The big dream for neuroscientists is to be able to watch our brain cells in action, in real time. Well, new research has maybe found the most promising tool yeta technique to watch individual neurons light up in response to a stimulus, like flipping

发表于:2019-01-08 / 阅读(99) / 评论(0) 分类 Scientific American(五)月

By Carol Pearson Washington 25 September 2007 A lot of people wonder about the impact cell phones might have on their health. And now a new study shows that heavy mobile, or cell, phone use may result in hearing loss. VOA's Carol Pearson reports. As

发表于:2019-01-11 / 阅读(120) / 评论(0) 分类 2007年VOA标准英语(九月)

Large Windows Could Capture Solar Energy 利用大窗户吸收太阳能 Solar cells have been around since the 1950s. But now there is a race to develop transparent solar cell that can cover windows of buildings and still capture the suns light for e

发表于:2019-01-12 / 阅读(112) / 评论(0) 分类 2016年VOA慢速英语(八)月

By Bill Rodgers Washington 19 May 2008 Cell phones are an example of what is sometimes now called leapfrog technology, a product that allows developing nations the benefits of a reliable and extensive communications network without the heavy investme

发表于:2019-01-13 / 阅读(86) / 评论(0) 分类 VOA标准英语2008年(五月)

By Victoria Cavaliere New York 16 October 2007 An annual stem cell research conference in New York has been bringing together some of the field's top scientists to discuss breakthroughs in stem cell research and what proponents call its long-term app

发表于:2019-01-31 / 阅读(108) / 评论(0) 分类 2007年VOA常速英语(十月)

By Paul Sisco Washington 17 April 2008 Federal regulators in Washington have approved plans to upgrade the nation's Emergency Alert System to include text messages to cellphones and other mobile devices. VOA's Paul Sisco has more in this Searching fo

发表于:2019-01-31 / 阅读(108) / 评论(0) 分类 VOA常速英语2008年(四月)

WASHINGTON, Aug. 4 (Xinhua) -- Researchers have found a way to turn mouse embryonic stem cells into sperm and this finding opens up new avenues for infertility research and treatment, according to astudy published Thursday in the online edition of jo

发表于:2019-02-04 / 阅读(233) / 评论(0) 分类 英语新闻

Turn Off Your Cell Phone 关掉你的手机 We went to the movie the other night. I sat in an aisle seat as I usually do, because it feels a little roomier. Just as the feature was about to start, a blonde from the center of the row got up and starte

发表于:2019-02-07 / 阅读(213) / 评论(0) 分类 趣味英语

By Jessica Berman Washington 19 December 2007 Stem cell research was the major medical and science story this past year, topping the list of achievements that experts say might finally lead to cures for many diseases. Meanwhile, global health officia

发表于:2019-02-17 / 阅读(120) / 评论(0) 分类 VOA常速英语2007年(十二月)

WASHINGTON, May 11 (Xinhua) -- Researchers at Brigham and Women 's Hospital (BWH), a teaching affiliate of Harvard Medical School, have identified(鉴定) a human lung stem cell that is self-renewing and capable of forming and integrating multiple bi

发表于:2019-02-18 / 阅读(166) / 评论(0) 分类 英语新闻

Why You Shouldn't Leave Nude Photos of Yourself on Your Cell Phone The 23-year-old woman lost her cell phone in a restaurant parking lot. By the next morning, someone was texting nude photos of her to everyone. As regular readers have learned many ti

发表于:2019-02-24 / 阅读(107) / 评论(0) 分类 阅读空间

What was actually interesting to us was not that the bacteria made light, but when the bacteria made light. 事实上,我们感兴趣的部分并不是细菌会不会发光,而是细菌何时发光。 What we noticed is when the bacteria were alo

发表于:2019-03-04 / 阅读(142) / 评论(0) 分类 TED演讲教育篇
学英语单词
abrashiocephalus
adiabatic engine
adiponitrile
all weather remote sensing
anatoxins
arc-drop loss
Bensley's neutral safranin stain
brood capsule
buck for something
building block technique
canalized character
cape fears
choke plug
co-use
completely shrouded impeller
compnet
compulsory trade unionism
computer panel
counter-electromotive force control
cullum
deadshit
decitabine
dehydrosongoring
dilute acid wash
doctor test
easy-to-digest
egg coke
endurance performance
ephemeral lake
EUTAENIOPHORIDAE
film mixture
flings off
formation center
free of blowholes
fuel cell detector
gender benders
general valve
Gerolstein
hidden heat
horn-rimmed
huntedly
hydrogen blistering corrosion
I Esdra
inspection copy
jainer
Jasminum lang
keyboard operator
Kramsk
la cueca (bolivia)
Lasiorhinus
leatherheads
left heart bypass system
leg-pulling
Leirhöfn
maximax utility
minimum-damage-fire-control theory
neroni
non commercial expenses
noti
oblique magnetization
pararescuemen
pauilion
people pleasers
photo chromism
pig-in-a-poke
placental souffle
prolixness
pseudeponymous
pusher-click spring
radius of sphere
radix-polygoni multiflori
reduced crude oil
reserved-channel principle
residual-based test
resupinatus
rotary straightening
run heavily
sacculated kidney
sahs
sancoche
scahill
single- purpose pliers for gripping and manipulating
soil-plant relationship
soneted
spring-tree
station keeping radar
superficial deterioration
sympathetic neuroblastoma
synchronous UART
Table, I.de la
talismans
tapered distribution
tenable
thrombasthenic
toroidal swirl chamber
trademark act
trust-controls
usable area
waiting for qi arrival
weak disturbance
yellow soybean
Yoribon